What did you do to your trains today?

A somewhat predictable minor upgrade to my motorised scratch built tank loco: incandescent lightbulbs wired to the motor as a headlamp and tail lamp, so that both light up while it runs. To install them, I punched holes in the running board and bunker and guided the wires through, and successfully wrapped the wires of both bulbs around the motor and battery contacts (again, no soldering at all). While not fully realistic, just the bare casings look proportionate to UK lamps unlike the DRG ones on the engines in Thomas & Friends. The removable boiler can still fit even with the untidy, unsoldered wiring around the battery and in the tanks. The only other problem is the tail lamp is wired through the firebox, although models with lights from the get go will have the wires hidden in better ways (such as under the footplates).